25
QuizMultiple Choice

Environmental Changes — Test

Question 25 • TPS EdX Biology

Freshwater can be renewed, but environmentalists consider it nonrenewable. Why is there a contradiction in classification?

Answer
A
Freshwater is recycled through the use of irrigation, bathing, and everyday use.
B
Freshwater evaporates and condenses, and then precipitation returns it to the lakes.
C
Freshwater is highly affected by global warming, and is quickly evaporating.
D
Freshwater is easily polluted or depleted before it can be replaced.

Explanation

Freshwater is renewable because natural processes can replenish it, but those processes may take time. People can pollute or use up accessible freshwater faster than it is replaced, making it effectively nonrenewable for human use. Therefore, the best answer is D, “Freshwater is easily polluted or depleted before it can be replaced.”

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